B5 COLLAPSIBLE PREC STK LNG BLK

Description

The B5 Systems Collapsible Precision Stock in the Long configuration is built for shooters who want the consistent cheek weld and stability of a fixed stock without giving up the length-of-pull adjustability of a standard carbine stock. It fits mil-spec carbine receiver extensions, which makes it a straightforward drop-in for the vast majority of AR-platform builds without requiring additional hardware or modification.

The core engineering trade-off this stock addresses is a familiar one: collapsible stocks typically introduce play and rattle that undermines repeatable cheek placement. B5 counters this with twelve internal tensioners that keep the stock locked against the buffer tube, eliminating the side-to-side movement that makes positional shooting inconsistent. The adjustable cheekpiece and buttpad are dialed in independently, so you can set eye height for a specific optic without compromising length of pull, and vice versa. That matters most when running a magnified scope at a fixed distance from your eye.

The Long variant is specifically configured for side-charging rifles and those fitted with a LAW Tactical side-folding adapter, where the extended length and geometry of a standard CPS would interfere with those features. The underside M-LOK rail accepts a monopod or other accessories for supported precision shooting. Sling attachment is handled by both fixed mounting points and steel anti-rotation QD sockets, the latter preventing the rotation under load that standard QD cups are prone to. Construction is reinforced polymer with color-matched machined hardware throughout. Made in the USA.